.book { margin: 0 0 20px; }
.book .title {
    margin-top: 20px;
    font-size: 1.5em; font-weight: bold; border-bottom: 1px solid #C9E0ED;
}
.book .book_infos {
    width: 100%; height: 66px;
    color: #888; margin: 0 0 5px;
}
.book .book_infos p { line-height: 30px; padding: 0; margin: 0; }
.book .book_infos p span { padding: 0 8px; }
.book_infos div.cover {
    width: 60px; height: 66px; float: left;
    background: url(images/bg_cover.gif);
}
.book_infos div.cover img {
    width: 54px; height: 54px;
    margin: 9px 3px 3px 3px;
}
.book_summary {
    line-height: 25px; text-indent: 24px;
    -moz-border-radius:7px;
    padding: 10px;
    background: #F5F5F5;
    margin: 5px 0;
}
.book div.box {
    width: 100%;
    -moz-border-radius: 7px;
    height: auto;
    background: #EFFDFF;
}
.book div.box div.chapter_trees {
    width: 40%; float: left;
}
.book div.box div.chapter_form {
    width: 60%; float: right;
}
.book div.box div.chapter_contents_list { width: 60%; float: right; }
.book div.box div.chapter_contents_list ul {}
.book div.box div.chapter_contents_list ul li {
    list-style: decimal;
    line-height: 25px;
}
.book div.box div.chapter_contents_list ul li span { padding: 0 6px; }

.book div.chapter_content_box {
    line-height: 25px; text-indent: 24px;
    -moz-border-radius:7px;
    padding: 10px;
    background: #F5F5F5;
    margin: 5px 0;
}
.book div.chapter_content_box h1.title {
    line-height: 30px; padding: 0; margin: 0;
}
.book div.chapter_content_box div.chapter_content_body {
    margin: 10px;
}
.book div.chapter_content_box div.chapter_content_infos {
    padding: 5px 0; border-top: #aaa solid 1px; text-align: right;
    margin-right: 20px;
}
.book div.chapter_content_box div.chapter_content_infos span { padding: 0 6px; }